Safety razor



9 1936. M. J. BIOCINA 2,064,811

I SAFETY RAZOR Filed June 18, '1935 Y H 24' l3 7 F 16-. IN VEN TOR.J

. M/(HHEL J. B/Ofl/VH 2 ATTORNEY.

Patented Dec. 22, 1936 UNITED STATES PATENT OFFICE Application June 18,

5 Claims.

This invention generally relates to those more or less conventional types of safety razors which are characterized by the incorporation therein of means for clamping a relatively thin, double edge, flexible blade between a guard and a cap or clamp. More particularly, the invention relates to improvements in the aforementioned style of razor in which pivotally mounted cap sections are utilized for clamping or conditioning the blade for the shaving operation.

A primary object of my invention is to provide a safety razor of the indicated character which affords rapid and complete access to the blade and which facilitates the placement of the blade in condition for shaving.

Another'object of the invention is to provide improved blade positioning or clamping means and mechanism for operating the same.

1 A still further object of my invention is to provide functionally unitary or integral means for moving the clamping members or cap sections of the aforementioned type of safety razor thereby avoiding loss of parts and loss of time in assembling the razor for shaving.

Another object of'the invention is to provide an improved safety razor which can be inexpensively manufactured, readily cared for and which, in addition, lends itself to attractive design motifs.

The foregoing and other objects of my invention, together with some of the advantageous features thereof, will appear from the following description of a preferred embodiment thereof, which is illustrated in the accompanying drawmg.

While the preferred embodimentof the invention is herein shown and described, it is to be understood that the appended claims are to be accorded a range of equivalents commensurate with the scope of the prior art. Moreover, that I am not to be limited to the specific embodiment illustrated, as the invention, as defined in the appended claims, can be embodied in a plurality and variety of forms.

Referring to the drawing:

Figure 1 is a partially elevational and partly V sectional view of an embodiment of the invention in which the left hand portion is a full elevational 1935, Serial No. 27,151

tudinal center of the base and to the right of the transverse center thereof.

Figure 2 is a sectional view of the base of the razor shown in Figure 1 and taken on the section line 22 thereof.

Figure 3 is a sectional view taken on the line 33 of Figure 1.

Figure 4 is an end view of the embodiment of my invention shown in Figure 1 of the drawing.

Figure 5 is a view taken on the line 5-5 of Figure 3.

In its preferred form, the safety razor of my invention preferably comprises a two-section handle, the sections of which are telescopically arranged relative to one another, a guard rigidly fastened to one section of said handle and forming a seat for a blade, a bi-sectional cap or clamping member; each cap section being pivotally mounted on said guard, together with means, operable by the telescopic movement of said handle sections, for swinging said cap sections to open and close the razor and affording quick and complete access to the blade for removal thereof as well as facilitating the clamping of the blade in operative position.

As illustrated in Figure 1 of the drawing, I provide a hollow handle consisting of two sections I l and I2 which may be formed to a generally cylindrical shape. The section II of the handle preferably is riveted or rigidly fastened by other suitable means to a guard i3, having the conventional teeth [4. Details of the upper face or blade-seating surface of the guard !3 are not particularly important, insofar as my improvements hereinafter described are concerned, but I prefer that the upper or blade seating surface of the guard be provided with the standard studs for locating a blade by cooperation with apertures in the blade, and. include, as well, ribs or shoulders that may serve as fulcrums for the blade when transversely flexed by the cap or clamping memher.

The cap or clamping means of the embodiment of my invention herein illustrated preferably comprises two cap sections ['1 and [8 which transversely divide the cap at the longitudinal center thereof. The cap sections I! and H! are symmetrical and together afford a concave blade engaging surface which coacts with the upper face or blade-engaging surface of the guard I3 to transversely flex the blade and maintain it in a condition of curvature for shaving. Each cap section has a depending ear I9 partially encompassing the ends of the guard l3 and by which the section is pivotally connected through a pivot pin 2| to the guard.

In accordance with my invention, a novel form of operating mechanism is provided for swinging the cap sections I? and i8 from and to a bladeclampin-g position as well as from and to an inoperative position in which the blade-seating surface of the guard i3 is completely exposed to aiford ready access to the blade. This operating mechanism, which is operable by manipulation of the handle of the razor, broadly comprises a pair of opposed fingers which are connected by means of a pin and slot arrangement with the cap sections and also connected to an arm which is slidably disposed in the handle. Preferably, the operating mechanism includes a pair of opposed fingers 22 which are slidably mounted in a groove 23 formed in a boss 24 of the guard l3. The boss 2d, as well as the groove 23 therein, is longitudinally coextensive with the guard i3 and preferably is cast integral therewith and on the bottom surface thereof. The fingers 22 are bifurcated adjacent their outer extremities for supporting pins 25 which move in slots 26 formed in enlarged lobes 21 of the ears E9 of each of the cap sections 11 and [8. As illustrated in the right-hand portion of Figure 1 of the drawing, the lobes 21 of the ears is are extended inwardly and at right angles to the ears and are of such dimensions that the slots 26 are elongated and may be inclined from the horizontal.

The mechanism for swinging the cap sections 5! and I8 also includes an arm 28 which is slidable in a central channel 29 of the handle of the razor. The channel 29 extends throughout sections I l and E2 of the handle as well as into the boss 24 of the guard [3. In order to connect the arm 28 with the fingers 22 to provide for unitary operation, I preferably utilize a pair of thin, flexible bands 3| which preferably are fabricated of steel but which can be made of any other material of equivalent strength and durability. The bands 3| are riveted or otherwise securely fastened, as by means of screws 32, to the side faces of fingers 22 and the arm 28, and the bands move in curved grooves 33 formed in section II of the handle and leading through the boss 24 tomerge with groove 23.

Movement of the fingers 22, arm 28 and bands 3| is preferably effected, as above indicated, by relative telescopic movement of the sections H and i2 of the handle. In the embodiment of my invention illustrated, I provide a head 34 which carries an inner annular skirt 36 adapted to seat snugly upon an interior annular shoulder 3? which is formed in section l2 of the handle. The head 34 of the handle also is provided with a central recess in its inner surface 38 for receiving the end 39 of the arm 28, which snugly seats therein. The head may be fastened in any suitable manner, such as by means of a rivet or screws, to the section l2 of the handle or, if desired, may be formed so as toprovide a wedge fit with the handle.

The full line showing of the right hand portion of Figure 1 of the drawing illustrates the cap section l8 in clamping position with the razor ready for shaving. observed that the fingers 22 are at rest in their inward position with the pins 25 at the ends of slots 26 nearest the handle of the razor. Further, the arm 28 is in its full outward position In this position, it will be,

or away from the guard IS. The dotted line showing of Figure 1 illustrates the cap section i8 in its full outward swung position and it is to be noted that this full outward swing of sections II and E8 of the cap is greater than In the swinging operation, pins 25 travel in a straight line, because held by the bifurcated portions of fingers 22 which are confined in groove 23, but bear, during their travel, against the edges of slots 26 thereby forcing the cap sections to swing about their pivots 2|. It will be observed that after the cap sections have come to rest in their full outward positions,,the pins 25 are at rest in the ends of slots 26 which are away from the handle of the razor and that fingers 22 are at rest in their full outward positions as illustrated by the dotted line showing of Figure 1. Moreover, arm 28 has been moved to its innermost position extending into the boss 24.

In order that the clamping action of the cap sections I1 and i8 will be uniform and effective without slipping against the action of the pin and slot arrangement, a latch, not shown, can be provided for latching section I2 relative to section II in the outer position of section 12. This latch may be constructed in any conventional manner and may consist of a pawl and ratchet, the pawl being tripped by a lever at the instant of manipulating the handle forvopening the cap sections.

The embodiment of my invention is relatively inexpensive to construct because of the relatively few parts and the elements of the razor can be cast, if desired. Moreover, I have provided a safety razor which has a quick and ready action for giving access to the blade while at the same time a positive and rapid clamping action for conditioning the razor for shaving. The several elements can be modified in many particulars without departing from the scope of the invention, the principal feature of which resides in the operating mechanism for swinging the cap sections.

What I claim as new and patentable is:

1. A safety razor comprising a guard having a blade-supporting surface, cap sections pivotally mounted on said guard for clamping a blade on said guard and for affording access to a blade thereon, a hollow handle of two sections, an arm slidably disposed in said handle, and a pair of fin-,

gers slidably disposed in said guard; said fingers being connected to said arm, and each connected to a different cap section; said arm and fingers being adapted to be actuated for pivoting said cap sections by relative movement of said handle sec-.

tions.

2. In a safety razor having a pair of cap sections pivotally mounted on a guard and serving as clamping means on a blade to condition the razor for shaving, means for pivoting said cap section from and to a clamping position against the blade, said means including a handle for the razor and also including a pair of opposed fingers slidably disposed in said guard, and an arm connected to said fingers and also connected to said handle; said arm and fingers being adapted to be actuated by manipulation of said handle.

3. In a safety razor ham'ng a guard, a pair of cap sections pivotally mounted on said guard and adapted to clamp a blade against the guard to a position for shaving, a hollow handle of two sections one of which is fastened to said guard and the other of which is mounted for relative telescopic movement with respect to the one sec- 75 tion; a pair of fingers slidably mounted in the base of said guard, means including a pin carried by each of said cap sections for connecting the fingers and cap sections, and an arm slidably disposed in said hollow handle and connected to each of said fingers; said arm being connected to the section of said handle not fastened to said base and adapted to be moved to actuate'said fingers and thereby pivot said cap sections upon relative telescopic movement between said sections of said handle.

4. In a safety razor having a guard and a pair of cap sections pivotally mounted on said guard and adapted to clamp a blade against the guard to a position for shaving, mechanism for swinging said cap sections from and to a blade-clamping position; said mechanism comprising a handle for the razor of two relatively movable sections, a pair of opposed fingers slidably mounted in said guard and adapted to be moved inwardly and outwardly towards and from the center of the guard; said fingers having bifurcated extremities, a pin carried by the bifurcated extremity of each finger, a lobe on each cap section and having an elongated, inclined slot therein for receiving said pins, and means for moving said fingers inwardly and outwardly to swing said cap sections, said means including an arm slidably mounted in said handle sections, and a pair of flexible bands connecting said arm and said fingers; said arm being adapted to slide and move said bands and connected fingers upon relative movement of said handle sections.

5. In a safety razor, a guard, a pair of cap sections pivotally mounted on said guard, a handle of two relatively movable sections, an arm slidably mounted in said handle sections, a pair of opposed fingers slidably mounted in said guard and connected to said arm, a pin and slot connection between each of said fingers and a different cap section; said cap sections being adapted to be swung on their pivots by relative movement of said handle sections which actuates said arm and connecting fingers.

MICHAEL J. BIOCINA. 

